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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 12 |
| 4 | 23 |
| 5 | 70 |
| 6 | 105 |
| 7 | 210 |
| 8 | 282 |
| 9 | 468 |
| 10 | 590 |
| 11 | 880 |
| 12 | 1065 |
| 13 | 1482 |
| 14 | 1743 |
| 15 | 2310 |
| 16 | 2660 |
| 17 | 3400 |
| 18 | 3852 |
| 19 | 4788 |
| 20 | 5355 |
| 21 | 6510 |
| 22 | 7205 |
| 23 | 8602 |
| 24 | 9438 |
| 25 | 11100 |
| 26 | 12090 |
| 27 | 14040 |
| 28 | 15197 |
| 29 | 17458 |
| 30 | 18795 |
| 31 | 21390 |
| 32 | 22920 |
| 33 | 25872 |
| 34 | 27608 |
| 35 | 30940 |
| 36 | 32895 |
| 37 | 36630 |
| 38 | 38817 |
| 39 | 42978 |
| 40 | 45410 |
| 41 | 50020 |
| 42 | 52710 |
| 43 | 57792 |
[0,0,12,23,70,105,210,282,468,590,880,1065,1482, 1743,2310,2660,3400,3852,4788,5355,6510,7205,8602, 9438,11100,12090,14040,15197,17458,18795,21390, 22920,25872,27608,30940,32895,36630,38817,42978, 45410,50020,52710,57792] |